Pumping mechanism and operating means therefor.



J. A. LUETHY. PUMPING MECHANISM AND OPERATING MEANS THEREFOR.

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APPLIGATION FILED 121313.21, 19061 Patented Apr. 22, 19H3.

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A I J. A. LUETHY. PUMPING MBCHANISM AND OPERATING MEANS THEREPQR. APPLICATION FILED FEB. Z1, 1906.

LUQB.. Patented Apr. v22, 1913.

3 SHEETS-SHEET 3.

lVAKOB A. LUETHY, 0F CAMDEN, NEW JERSEY.

PUMPING MECHANISM AND OPERATING MEANS THEREFOR.

Specification of Letters Patent.

Patented Apr. 22, 1913.

Application filed February 21, 1906. Serial No. 302,261.

To all whom it may concern Be it known that l, JAKoB AnoLr LUETHY, a cit'zen of the Republic of Switzerland, having declared my intention of becoming a citizen of the United States, and aresident of Gamden, New Jersey, have invented certain Improvements in Pumping Mechanism and Operating Means Therefor, of which the following is a. specification.

My invention relates to pumping mechanism, and consists of an improved structure designed to be connected with and driven by force delivered from the cylinder of an engine operated by any form of' expanding fluid under varying degrees of pressure.

My invention comprises an automatically operated pumping mechanism acting as an auxiliary to the motor and operated by the motive power driving the same and capable of supplying a vaporizing fluid or liquid (such as water) to and throughout the casing of the main engine cylinder; the inlet and discharge of oil to lubricate the working parts of the engine, including the inner wall of the cylinder where it serves as a packing for the piston, and the inlet and subsequent compression of air for any desired use.

A further object of my invention is to provide a pumping mechanism designed to accomplish the Work noted above, that is attacheble to any form of motor or engine operated by varying de rees of fluid pressure, which pumping mechanism is to be operated directly by the for-ce derived from fluid without any direct connection with the moving parts of said motor or engine.

My invention is fully shown in the accompanying drawings, in which:

Figure 1, is a side elevation of one type of engine and its connected parts to which my improved pumping mechanism may be applied; Fig. 2, is a sectional plan view of the same, taken on the line a-a, Fig. 1; Figs. 3 and 4, are sectional views illustrating the pumping mechanism forming the subject of my invention; Figs. 5, 6, 7 and 8,

are views illustrating details of my invention; Figs. 9,10, il and 12, are diagram views of the' engine cylinder and pump cas-- ing showing the position of the pistons therein at various times during the cycle of operations of the engine piston; Figs. 413 and 1d, are diagram views of my improved Vfected, partly by the spring pumping mechanism in connectionwith a steam engine cylinder, Fig. 15, is a sectional View on the line -Z), Fig. 2.

In the accompanying drawings, the pump` ing mechanism forming the subject of my invention isshovvn as applied to-an internal combustion engine of the horizontal type; said mechanism being arranged to supply oil for lubricating the moving parts of the engine and to provide a frictionless and lubricating' packing. for the piston; yto supply aA vaporizing Huid or liquid such as water tb the hollow wall of the cylinder casing head, and to effect the compression of air which s subsequently stored and utilized for starting the engine or other purposes. The en@ gine shown herewith is of the type designo to employ gas as the fuel. l,lilith engines employing gasolene or other similar iuel requiring vapor-ization adjacent to the point of use, the pumping mechanism may be employed to deliver the charge to the car bureter; such modification involving no change in the principle @of construction forming the subject olfl my invention.

ln the drawings, 1 represents the cylinder of the engine, having the usual piston 2, connected by a rod 3 to a crank 4i; such crank being journaled at 5 in the bearings 6 carried by the engine frame 7. Disposed below the cylinder 1 and in communication with the chamber thereof through, the pas sage 8, is a casing 10 in which is mounted the pumping mechanism comprising a series of pistons 11,113, 12 and 13; the main piston llbeing operated by force developed within the cylinder 1, which enters said pump casing through the passage 8, and this piston 1l in turn operates the pistons 11a, 12 and 13.

The piston 11 carries the auxiliary piston 11a in line therewith, and the pistons 11a and 12 are connected by suitable piping to reservoirs containing oil and Water respectively, so that upon the return or suction stroke of the piston 11, which is ef- 15 disposed within a recess in the piston 11, and partly by a vacuum created by the 'suction stroke of the main piston 2, oil and Water, respectively, will be drawn into the casing 10 by the pistons 11a and 12. Upon the discharge stroke ot' the piston 11 which is eiected in varying degree by force developed by the action of the .main piston 2 during its suc- Iso -vent dirt and grit cessive cycles, the oil and water, respectively, gathered hy the pistons 11 and, 12, will he distrilnited: the former to the several hearings ot' the crank shaft and the inner surface of the cylinder, and the latter to the hollow portion ot the' main cylinder casing. The piston 13, also connected to the piston 11, operates in unison with the pistons 11 and 1Q, and is arranged to suck air and force the sume through a suitable pipe to a convenient reservoir (not shown),

`and for this purpose it is unnecessary to provide a pipe or other connection at the inlet end 1G. The piston 11 lits a chamber 17 in the casing 1t) with which the passage 8 communicates, and this piston has arms 18 to which the pistons 12 and 13 are connected.

The piston 11a sucks the drip oil Vfrom the crank pit Q0 of the engine, on one stroke ot said piston, through a pipe Z1 and a valved port 22 ot a duplex valve structure 23 ,sind pipe 21 having a suitable screen 21jl at its end to prevent dirt and grit entering' with said oil. Upon the other stroke or" said piston, this oil is forced through the valved port 22 of lthe valve structure 23, and through the pipesV Ztl to the cranl: shaft fi. A portion of this oil is also conveyed hy an auxiliary pipe Q41 to the inner .vall o'i the cylinder 1 and i'ornis a packing medium t'or the piston. lVhen the piston is in the pf tion shown in Fig. Q, a portion of this oil supply enters passage 25 .in the Wall ot said piston from its groove 2G, and from said passage 25 such oil will enter a corn- Inunieating here or opening 27 `in the in or spindle 28 connecting the rc1 3 to the piston, which pin has a passage Q9 leading to the hearing surface et' said rod connection. Any excess of lubricant ivill distribute on the surface of the cylinder. 'lhe crank shaft 4 is also bored at 30, as clearly illus vtrated in the drawing, so that the oil forced through the pipes 2e to lulu-icute the hearings tor said shaft, `vill also luliricate the crank hearing. At the outer ends of the crank hearings, grooves 231 are tor-med to receive the surplus oil, which grooves com@ mimicate with drip passages 32 leading to the crank pit ot' the engine.

On the same stroke otl the main piston 2 that-,oil is sucked hy the piston 11 in the pump casing, water will he sucked by the piston 12, trom a suitable source ot' supply, a tank 33 in the hollow base ot the engine support, for instance via a pipe 38a which is provided with a. suitahle screen 34 to preentering such Water, through the fixed `valve structure 35, such` water passing through said piston, which is ported and provided with a valve 36, and thence out through the pipe 37Which leads to the hollow Wall of the cylinder head 1a. This water is supplied in small quantities and is designed to he vaporized, iilling the resent-e hollow ivalls of the head with steam, a medium relatively cooler than the heat developed by the explosion and hence e'ectinwa sutiicient cooling et' the walls of the cylindwer. lhe steam generated from the the hollow wall a pipe 18. li"- desired, such steam may eX- haust; through a safety valve, shown by dotted lines in Figi 15, and the Water of condensation may find its Way into a tank 32 in the hase of the engine support through an extension 18a of said pipe 18. l y

T he piston 13 is ot' the same characterjand is arranged in the same manner as the pis ton 1Q; being designed to draw in air which passes through the fired valve structure 38, and also through a valve 39 carried by said piston, which is also ported, to a pipe 16r through which it is conveyed to any suitable reservoir.

The pump is so mounted and connected with the cylinder that its action isautomat-ic; the suction ot the main piston 2 perinit'tino the spring' 15 to cause ,the piston 1l to eii'ecr a similar stroke, While on the other. strokes of the main piston due to pressure exerted hy explosion or vexigiansion of a. duid, the piston 11 will 'he moved by the force of such explosion or expansion 'entering the passage 14, to discharge oil and Water to theA points desired. When the pressure on the piston 1l is relieved, it will be returned by the spring 15,a`ssisted bythe vacuum created within the main cylinder 2. During suCh stroke it will cause the istons' 11a, 12 and 13 to suck into the auxiliary cylinder the desired quantities of oil, Water and air, for storage and subsequent discharge.

The valves which 1 have employed in con nection with the pistons ,of my improved pumping apparatus are substantially the saine in construction, and comprise a cupshaped member having a pronged guiding portion L1-1 and provided `with the necessary openings 4:2 for the passageof iuid or liquid as may be necessary or desirable. These valves are fully shown in Figs. 5, 6, and S. To prevent undue shock, blocks of iiher are disposed in recesses fili lin the pump casing opposite the nuts 45 connecting the pistons 12 and 13 to the arms 18 of the piston 11.

ln Figs. 9, 10, 11 aind`12, I have shofvn diagram views of the main cylinder 1, and the pump casing 10, showing the position of the main piston 2, and the operating pist-on 11- at the end of the compression, explosion, exhaust and suction strokes, respectively. The diagram views noted are those indicating the action of my apparatus with a four-cycle internal combustion' engine. in operating my improved pumping mechanisn'i from a steam engine cylinder, diagrams ot which are shown in 41Pigs 13 and 14, 'the movements of the piston 11 Will be increased 4faces is established -insurin' 7 23 tion ot which will absence in, number, while the length oit such movement Willbe correspondingly lessened. Ln all cases, however, the discharge of the oil Will take placeduring the generation ot the greatest-amount of friction by `such engine Working under normal conditions, in order that such friction may be. reduced and the eiiiciency of the engine increased.

lWhile l have shown yand described an auX- .iliary cylinder having three pistons for the inlet of Water, oil and air for subsequent use, it Will be understood that .l do not Wish to be limited to any special number, as that will be determined by the number of fluids employed in connection with the particular engine.

Among the many desirable advantages incident to the operation of engines equipped with the improved pumping mechanism formingr the subject ot' my invention, the following may be noted:

First: The mechanism is exceedingly simple in operation and durable iii structure; requiring less attention, and insuring safety and comfort in the operation of the engine.

Second: The mode of lubrication being a forced one and dependent upon the pressure within the cylinder, lubrication in direct proportion to the necessities of the friction generating parts of the several moving surat all times a sufhcieni amount of lubricant to prevent contact ot the surfaces, and hence relieving the tendency of such parts to excessive heating'.

Third: When employed in connection with an internal combustion engine, the complete enveloping of the engine piston with oil by. means of my improved method of lubrication will not depend upon the resinous properties of the lubricant. In the use or" my improved mechanism, a lubricant thinned by heat, even the temperature of live steannanswers all the'requirement ot' lubrication, protecting the engine against excessive heating, insuring the proper packinggT ot thc piston, and bv enabling the operation of the engine with its cylinder heated above the normal, a remarkable economy in fuel is eti'ected. This latter item is accomplished by the more perfect combustion of the fuel, a condition that is insured by warmer cylinder walls; by the reduced heat absorbing quality of the cooling fluid; and further` by the instantaneous spread of the force ot the explosion, permitting later ignition. A further economy in fuel may be' edected by the vaporization and subsequent explosion of that portion of the lubricant Which may bc Within the explosion chamber after the piston has moved outward. As the lubricant, l may employ a composition of'lubricati g oil and coal oil, even crude oil; a porvaporize Within the explosion chamber owing tothe heat of the cylinder, as such lubricant vapmirvr g will take theplace of a certain portion ol t gas or gasclene employed as the explosive agent.,

Fourth: lin an' internal combustion engine, my improved mechanism establishes a safe running condition `with the opsluiting structure steam hot; the evaporation of the Water necessary to transform the saine into steam absorbing heat from the cylinder. l can thus elect a remarkable economy in the quantityl oit wat-er need for cooling the engine cylinder, and gain in Athe cooling ct'- fect by the use of liberal lubrication.

Fifth: My improved mecbanisn'i possesses the further particular and desirable property that it has no direct connection with the moving parts oi the engine, but may be located and attached at any des' 1able point with respect to the cylinder thereof; in some instances being a point remote from the engine cylinder.

I claim:

.1. ln pumping mechanism, the combinetion of a casing, a plurality et pumping clemcnts mounted. therein compris' a main operating piston and a 'pair ci auxiliary pistons connected thereto, an engine having a hollow-walled cylinder in which power is developed, a connection between said cylinder and the casing ofthe pumping mech;- ilnism providingr for the passage motive fluid under'variable pressure for operating the main pistonv'of said pumping mechanism, said engine having a series of moving parts to be lubricated, a source of lubricant, one of said auxiliary pistons being-arranged to deliver such lubricant from its source to said moving parts during the operation of the engine, the operation of said main piston by pressure from the engine cylinder being such that the greatest force ot said pumping mechanism'tending to deliver lubricant'takes place during the davelopmcnt ot the greatest amount of friction by unid moving parts, and a lsource ol cooling liquid,l the other auuiliary piston beingl arranged to transiter such liquid to the wall ot the cylinder.

2. The combination with an explosion engine, its hollow-Walled cylinder in which power is developed, and the moving,l parts requiring,Y lubrication, ci an independent horizontally disposed casing carried b v said cylinder, a source ot' lubricant, a source of cooling;` liquid, a plurality of pumpingclements mounted in said casing comprisingr a main operating piston and a pair of auxiliary pistons connected thereto, the cylinder of saidV engine being in communication with and providing a source oi' motive liuid under variable pressure for operating said pumping elements in one direction, and a spring 'for operating said pumping elements in the opposite rection. onev of the auailiarv hitzpumping elements beh-1g arranged to evel mmezo this specification, in the pesence o' lqxbroant to 1.bhev moving parts of said engine two subscbng witnesses. during theppemton of the same, and the JAKB 'ILETHY. other auxxhary pumpmg element arranged 5' to deliver cooling liquid to the hollow Wall 'Vltnesses:

of the cynder. MURRAY C. BOYER,

In testimony Whereoil have signed :my 50s. EL KLEIN. 

